what happens when i watch my sis play on the PS4

My sister loves kingdom hearts and final fantasy and lately she's mostly been playing FFXV and i've been watching her play for most of it and we both got rly attached to the main characters and now we consistently imagine them doing stupid shit and headcanoning them as some alternate form of a family and then i imagined this and i thought ok let's do this and post it on all the social media you know you can

Also how do i turn on the DA watermark

FFXV (c) Square Enix
Art (c) to me